Adjustable grate-bar support



Get. 30, 1928. 1,689,604

C. l. WALLIS ET AL ADJUSTABLE GRATE BAR SUPPORT Filed Dec. 4, 192

JOHA/ cf. 4/?0 an amvemtou 10 F/ 6- 4 flnowu l.

Patented Oct. 3t), 1928.

UNITED STATES PATENT OFFICE.

CLAUDE IVY WALLIS AND JOHN S. AMROCK, OF MOBILE, ALABAMA.

ADJUSTABLE GRATE-BAR SUPPORT.

Application filed December 4, 1926; Serial No. 152,620.

This invention aims to provide novel means whereby a grate bar, a shaker bar, or the like. may be removed readily from a furnace.

With the foregoing; and other objects in view which will appear as the description proceeds, the invention resides in the COIlllJinth tion and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed, maybe made within the scope of what is claimed, without departing, from the spirit of the invention.

In the drawings Figure 1 is a front elevation, the gears on the grate bars being omitted:

Figure 2 is a section on the line 22 of Figure 1;

Figure 3 is a composite view showing the hearing; blocks removed from the support:

Figure 4 is a section on the line l% of Figure 2.

The numeral 1 marks a furnace wall having an upper opening 2 communicating with a lower doorway 20, the doorway 20 being closed by a. door 21. Over the opening 2 extends a support 3, in the form of a plate, held in place by securing elements 4, the support or plate 3 having openings 5 that communicate with the opening 2 in the wall 1. The longitudinal vertical edges of theopenings 5 converge rearwardly and inwardly, as shown at 22 in Figure 4;. On the said edges of the openings 5 there are ribs 6 which slant downwardly and inwardly. The upper end of the opening 5 is rounded as at 16, and at the upper end of the opening 5 there is a reinforcing flange 12.

A member 8, in the form of a blo'cl; is inserted slida-bly into the opening 5. The 1ongitudinal vertical edges of the block 8 converge rearwardly and inwardly, as at 24, to correspond with the slant 22 of the longitudinal vertical edges of the opening 5 in the plate 3. The block 8 is provided on its vertical longitudinal edges with ribs 9 cooperating with the ribs 6, the ribs 9 slanting downwardly and inwardly. At its upper end, the block 8 has a. concaved seat 15 about which extends a reinforcing flange 11. The numeral 14 denotes a grate bar, a shaker bar, or an equivalent structure, the endof which is mounted to rock in the seat 15 of the block 8 and in the end portion 18 of the opening 5. One of the gears by which n'iotion is transmitted from one bar to another is shown a l 17.

7 l v hen the block 8 is in position as shown in lligure 2, the block will not move outwardly that is to the left in Figure 2 because the ribs 9 and 6 slant downwardly and inwardly.

he block 8 cannot move freely in a vertical direction because tl e ribs 6 and 9 cooperate to prevent this. The block 8 cannot slide inwardly beyond the position shown in Figure 4;, owing .to the cooperation between the con verging edges 22-22 and 24-.24.

The block 8 may be pulled forwardly and outwardly into the position shown in Fis ure 8 of the drawings. This sets the forward end of the grate bar or shaker bar free. and when the door 21 is opened, the forward end of the grate bar or shaker bar may be dropped downwardly, the bar being removed without difficulty. By reverse process, a new bar can be mounted quickly in place. 1

What is claimed is In a device of the class described, a platelike support having an upwardly extended opening in its lower edge, and a bearing member in the opening, the upper end of the bear mg member being spaced from the upper end of the opening to afford a place of jonrnaling for a grate bar; the vertical longitrulinai edges of the bearing member, and. the corresponding members of the support bci vided with interengaged ribs which coop to hold the bearing member against dropp downwardly out of the opening, the bear-1a,; member tapering in width from front to ltQlCi and the longitudinal ed 'es of the opening being correspondingly inclined from front to back, thereby to prevent the bearing men!" her from sliding through the opening in a substantially horizontal direction, and the CLAUDE IVY XVALLIS'. JOHN S. AMROCK. 

